firmware: cs_dsp: Switch to using namespaced exports

Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:

Use EXPORT_SYMBOL_NS_GPL() instead of EXPORT_SYMBOL_GPL() and patch the
three drivers that use cs_dsp to add the MODULE_IMPORT_NS().

To make the namespace more specific the KConfig symbol for cs_dsp is
changed from CS_DSP to FW_CS_DSP.

drivers/firmware/cirrus/Kconfig

 # SPDX-License-Identifier: GPL-2.0-only
 
-config CS_DSP
+config FW_CS_DSP
 	tristate
 	default n

drivers/firmware/cirrus/Makefile

 # SPDX-License-Identifier: GPL-2.0
 #
-obj-$(CONFIG_CS_DSP)		+= cs_dsp.o
+obj-$(CONFIG_FW_CS_DSP)		+= cs_dsp.o

drivers/firmware/cirrus/cs_dsp.c

@@ -369,7 +369,7 @@ const char *cs_dsp_mem_region_name(unsigned int type)
 		return NULL;
 	}
 }
-EXPORT_SYMBOL_GPL(cs_dsp_mem_region_name);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_mem_region_name, FW_CS_DSP);
 
 #ifdef CONFIG_DEBUG_FS
 static void cs_dsp_debugfs_save_wmfwname(struct cs_dsp *dsp, const char *s)
@@ -480,7 +480,7 @@ void cs_dsp_init_debugfs(struct cs_dsp *dsp, struct dentry *debugfs_root)
 
 	dsp->debugfs_root = root;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_init_debugfs);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_init_debugfs, FW_CS_DSP);
 
 /**
  * cs_dsp_cleanup_debugfs() - Removes DSP representation from debugfs
@@ -492,17 +492,17 @@ void cs_dsp_cleanup_debugfs(struct cs_dsp *dsp)
 	debugfs_remove_recursive(dsp->debugfs_root);
 	dsp->debugfs_root = NULL;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_cleanup_debugfs);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_cleanup_debugfs, FW_CS_DSP);
 #else
 void cs_dsp_init_debugfs(struct cs_dsp *dsp, struct dentry *debugfs_root)
 {
 }
-EXPORT_SYMBOL_GPL(cs_dsp_init_debugfs);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_init_debugfs, FW_CS_DSP);
 
 void cs_dsp_cleanup_debugfs(struct cs_dsp *dsp)
 {
 }
-EXPORT_SYMBOL_GPL(cs_dsp_cleanup_debugfs);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_cleanup_debugfs, FW_CS_DSP);
 
 static inline void cs_dsp_debugfs_save_wmfwname(struct cs_dsp *dsp,
 						const char *s)
@@ -710,7 +710,7 @@ int cs_dsp_coeff_write_acked_control(struct cs_dsp_coeff_ctl *ctl, unsigned int
 
 	return -ETIMEDOUT;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_coeff_write_acked_control);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_coeff_write_acked_control, FW_CS_DSP);
 
 static int cs_dsp_coeff_write_ctrl_raw(struct cs_dsp_coeff_ctl *ctl,
 				       unsigned int off, const void *buf, size_t len)
@@ -785,7 +785,7 @@ int cs_dsp_coeff_write_ctrl(struct cs_dsp_coeff_ctl *ctl,
 
 	return 1;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_coeff_write_ctrl);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_coeff_write_ctrl, FW_CS_DSP);
 
 static int cs_dsp_coeff_read_ctrl_raw(struct cs_dsp_coeff_ctl *ctl,
 				      unsigned int off, void *buf, size_t len)
@@ -857,7 +857,7 @@ int cs_dsp_coeff_read_ctrl(struct cs_dsp_coeff_ctl *ctl,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_coeff_read_ctrl);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_coeff_read_ctrl, FW_CS_DSP);
 
 static int cs_dsp_coeff_init_control_caches(struct cs_dsp *dsp)
 {
@@ -1500,7 +1500,7 @@ struct cs_dsp_coeff_ctl *cs_dsp_get_ctl(struct cs_dsp *dsp, const char *name, in
 
 	return rslt;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_get_ctl);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_get_ctl, FW_CS_DSP);
 
 static void cs_dsp_ctl_fixup_base(struct cs_dsp *dsp,
 				  const struct cs_dsp_alg_region *alg_region)
@@ -1590,7 +1590,7 @@ struct cs_dsp_alg_region *cs_dsp_find_alg_region(struct cs_dsp *dsp,
 
 	return NULL;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_find_alg_region);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_find_alg_region, FW_CS_DSP);
 
 static struct cs_dsp_alg_region *cs_dsp_create_region(struct cs_dsp *dsp,
 						      int type, __be32 id,
@@ -2224,7 +2224,7 @@ int cs_dsp_adsp1_init(struct cs_dsp *dsp)
 
 	return cs_dsp_common_init(dsp);
 }
-EXPORT_SYMBOL_GPL(cs_dsp_adsp1_init);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp1_init, FW_CS_DSP);
 
 /**
  * cs_dsp_adsp1_power_up() - Load and start the named firmware
@@ -2316,7 +2316,7 @@ int cs_dsp_adsp1_power_up(struct cs_dsp *dsp,
 	mutex_unlock(&dsp->pwr_lock);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_adsp1_power_up);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp1_power_up, FW_CS_DSP);
 
 /**
  * cs_dsp_adsp1_power_down() - Halts the DSP
@@ -2348,7 +2348,7 @@ void cs_dsp_adsp1_power_down(struct cs_dsp *dsp)
 
 	mutex_unlock(&dsp->pwr_lock);
 }
-EXPORT_SYMBOL_GPL(cs_dsp_adsp1_power_down);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp1_power_down, FW_CS_DSP);
 
 static int cs_dsp_adsp2v2_enable_core(struct cs_dsp *dsp)
 {
@@ -2500,7 +2500,7 @@ int cs_dsp_set_dspclk(struct cs_dsp *dsp, unsigned int freq)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_set_dspclk);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_set_dspclk, FW_CS_DSP);
 
 static void cs_dsp_stop_watchdog(struct cs_dsp *dsp)
 {
@@ -2590,7 +2590,7 @@ int cs_dsp_power_up(struct cs_dsp *dsp,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_power_up);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_power_up, FW_CS_DSP);
 
 /**
  * cs_dsp_power_down() - Powers-down the DSP
@@ -2624,7 +2624,7 @@ void cs_dsp_power_down(struct cs_dsp *dsp)
 
 	cs_dsp_dbg(dsp, "Shutdown complete\n");
 }
-EXPORT_SYMBOL_GPL(cs_dsp_power_down);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_power_down, FW_CS_DSP);
 
 static int cs_dsp_adsp2_start_core(struct cs_dsp *dsp)
 {
@@ -2710,7 +2710,7 @@ int cs_dsp_run(struct cs_dsp *dsp)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_run);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_run, FW_CS_DSP);
 
 /**
  * cs_dsp_stop() - Stops the firmware
@@ -2749,7 +2749,7 @@ void cs_dsp_stop(struct cs_dsp *dsp)
 
 	cs_dsp_dbg(dsp, "Execution stopped\n");
 }
-EXPORT_SYMBOL_GPL(cs_dsp_stop);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_stop, FW_CS_DSP);
 
 static int cs_dsp_halo_start_core(struct cs_dsp *dsp)
 {
@@ -2811,7 +2811,7 @@ int cs_dsp_adsp2_init(struct cs_dsp *dsp)
 
 	return cs_dsp_common_init(dsp);
 }
-EXPORT_SYMBOL_GPL(cs_dsp_adsp2_init);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp2_init, FW_CS_DSP);
 
 /**
  * cs_dsp_halo_init() - Initialise a cs_dsp structure representing a HALO Core DSP
@@ -2825,7 +2825,7 @@ int cs_dsp_halo_init(struct cs_dsp *dsp)
 
 	return cs_dsp_common_init(dsp);
 }
-EXPORT_SYMBOL_GPL(cs_dsp_halo_init);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_halo_init, FW_CS_DSP);
 
 /**
  * cs_dsp_remove() - Clean a cs_dsp before deletion
@@ -2845,7 +2845,7 @@ void cs_dsp_remove(struct cs_dsp *dsp)
 		cs_dsp_free_ctl_blk(ctl);
 	}
 }
-EXPORT_SYMBOL_GPL(cs_dsp_remove);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_remove, FW_CS_DSP);
 
 /**
  * cs_dsp_read_raw_data_block() - Reads a block of data from DSP memory
@@ -2882,7 +2882,7 @@ int cs_dsp_read_raw_data_block(struct cs_dsp *dsp, int mem_type, unsigned int me
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_read_raw_data_block);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_read_raw_data_block, FW_CS_DSP);
 
 /**
  * cs_dsp_read_data_word() - Reads a word from DSP memory
@@ -2906,7 +2906,7 @@ int cs_dsp_read_data_word(struct cs_dsp *dsp, int mem_type, unsigned int mem_add
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_read_data_word);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_read_data_word, FW_CS_DSP);
 
 /**
  * cs_dsp_write_data_word() - Writes a word to DSP memory
@@ -2932,7 +2932,7 @@ int cs_dsp_write_data_word(struct cs_dsp *dsp, int mem_type, unsigned int mem_ad
 
 	return regmap_raw_write(dsp->regmap, reg, &val, sizeof(val));
 }
-EXPORT_SYMBOL_GPL(cs_dsp_write_data_word);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_write_data_word, FW_CS_DSP);
 
 /**
  * cs_dsp_remove_padding() - Convert unpacked words to packed bytes
@@ -2956,7 +2956,7 @@ void cs_dsp_remove_padding(u32 *buf, int nwords)
 		*pack_out++ = (u8)(word >> 16);
 	}
 }
-EXPORT_SYMBOL_GPL(cs_dsp_remove_padding);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_remove_padding, FW_CS_DSP);
 
 /**
  * cs_dsp_adsp2_bus_error() - Handle a DSP bus error interrupt
@@ -3026,7 +3026,7 @@ void cs_dsp_adsp2_bus_error(struct cs_dsp *dsp)
 error:
 	mutex_unlock(&dsp->pwr_lock);
 }
-EXPORT_SYMBOL_GPL(cs_dsp_adsp2_bus_error);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp2_bus_error, FW_CS_DSP);
 
 /**
  * cs_dsp_halo_bus_error() - Handle a DSP bus error interrupt
@@ -3086,7 +3086,7 @@ void cs_dsp_halo_bus_error(struct cs_dsp *dsp)
 exit_unlock:
 	mutex_unlock(&dsp->pwr_lock);
 }
-EXPORT_SYMBOL_GPL(cs_dsp_halo_bus_error);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_halo_bus_error, FW_CS_DSP);
 
 /**
  * cs_dsp_halo_wdt_expire() - Handle DSP watchdog expiry
@@ -3106,7 +3106,7 @@ void cs_dsp_halo_wdt_expire(struct cs_dsp *dsp)
 
 	mutex_unlock(&dsp->pwr_lock);
 }
-EXPORT_SYMBOL_GPL(cs_dsp_halo_wdt_expire);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_halo_wdt_expire, FW_CS_DSP);
 
 static const struct cs_dsp_ops cs_dsp_adsp1_ops = {
 	.validate_version = cs_dsp_validate_version,
@@ -3228,7 +3228,7 @@ int cs_dsp_chunk_write(struct cs_dsp_chunk *ch, int nbits, u32 val)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_chunk_write);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_chunk_write, FW_CS_DSP);
 
 /**
  * cs_dsp_chunk_flush() - Pad remaining data with zero and commit to chunk
@@ -3247,7 +3247,7 @@ int cs_dsp_chunk_flush(struct cs_dsp_chunk *ch)
 
 	return cs_dsp_chunk_write(ch, CS_DSP_DATA_WORD_BITS - ch->cachebits, 0);
 }
-EXPORT_SYMBOL_GPL(cs_dsp_chunk_flush);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_chunk_flush, FW_CS_DSP);
 
 /**
  * cs_dsp_chunk_read() - Parse data from a DSP memory chunk
@@ -3289,7 +3289,7 @@ int cs_dsp_chunk_read(struct cs_dsp_chunk *ch, int nbits)
 
 	return result;
 }
-EXPORT_SYMBOL_GPL(cs_dsp_chunk_read);
+EXPORT_SYMBOL_NS_GPL(cs_dsp_chunk_read, FW_CS_DSP);
 
 MODULE_DESCRIPTION("Cirrus Logic DSP Support");
 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");

sound/pci/hda/Kconfig

@@ -98,7 +98,7 @@ config SND_HDA_SCODEC_CS35L41
 
 config SND_HDA_CS_DSP_CONTROLS
 	tristate
-	select CS_DSP
+	select FW_CS_DSP
 
 config SND_HDA_SCODEC_CS35L41_I2C
 	tristate "Build CS35L41 HD-audio side codec support for I2C Bus"

sound/pci/hda/cs35l41_hda.c

@@ -1545,3 +1545,4 @@ MODULE_DESCRIPTION("CS35L41 HDA Driver");
 MODULE_IMPORT_NS(SND_HDA_CS_DSP_CONTROLS);
 MODULE_AUTHOR("Lucas Tanure, Cirrus Logic Inc, <tanureal@opensource.cirrus.com>");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(FW_CS_DSP);

sound/pci/hda/hda_cs_dsp_ctl.c

@@ -249,3 +249,4 @@ EXPORT_SYMBOL_NS_GPL(hda_cs_dsp_read_ctl, SND_HDA_CS_DSP_CONTROLS);
 MODULE_DESCRIPTION("CS_DSP ALSA Control HDA Library");
 MODULE_AUTHOR("Stefan Binding, <sbinding@opensource.cirrus.com>");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(FW_CS_DSP);

sound/soc/codecs/Kconfig

@@ -349,7 +349,7 @@ config SND_SOC_WM_HUBS
 
 config SND_SOC_WM_ADSP
 	tristate
-	select CS_DSP
+	select FW_CS_DSP
 	select SND_SOC_COMPRESS
 	default y if SND_SOC_MADERA=y
 	default y if SND_SOC_CS47L24=y

sound/soc/codecs/wm_adsp.c

@@ -2069,3 +2069,4 @@ static const struct cs_dsp_client_ops wm_adsp2_client_ops = {
 };
 
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(FW_CS_DSP);